- 279
- 609
- 93
- Location
- Plaquemine, Louisiana
I am totally confused on what to put in my transmission. I have been reading many posts about what people are using in their trucks (mostly deuces) and the discussions say to stay away from GL-5 because it attacks the yellow metal and others say it doesn't matter because it needs a high temp to activate the sulfur which leads to damage. I have also seen the posts saying to use 85w-90 gear oil. What are y'all using in your M37s?
Thanks
Mike
Thanks
Mike